Alexa commands were failing on Tuesday.
Wednesday morning Alexa was working again without me doing anything to fix it.
Wednesday evening Alexa was failing again. And has not been working since Wednesday.

It has started working again "Yippee"
This time I tried :-
Rebooted Raspberry pi3 - Didn't work
Disabled/Enabled Alexa App - Didn't work
Disabled/Enabled Remote Access App - Didn't Work
Disabled/Enabled Alexa App again. Now Alexa is working.

Alexa Service was super stable for me the last weeks. Since yesterday I experience the same issues as in January. I get the error message "no response from device". Is this a known Problem? Is the zway.me Team aware?

They just announced the upgrade had been put in and she needed to reboot into my Echo. I believe that it had been more than only a very simple outage.I really have an atmosphere they'd to put in some kind of server patch system-wide.